Nut-lock.



Patented Aug. I4, moo.

m. 4&5

MILTON BARTLEY, OE POLK, PENNSYLVANIA, AssIGNORAv OE THREE-TENNIS ToJAMES MOORHEAD, MURDOOH AND HARRY ELEMINGr MCDOWELL, OE PITTsBURe, ANDGEORGE LINCOLN WEAVER, OE PHILADELPHIA, PENN- SYLVANIA.

NUT-LOCK.

SPECIFICATION formingpart of Letters Patent No. 656,151,dated August 14,1900.

To all whom it may concern:

Be it known that I, MILTON BARTLEY, a citizen of the United States,residing at Polk, in the county of Venango and State of Penn- Sylvania,have invented certain new and usef ul Improvements in Nut-Locks, ofwhich the following is a specilication, reference being had to theaccompanying drawings, forming part of thisspecitication, in which*Figure lis a partial side elevation of a railjoint, illustrating theapplication of my nutlock. Fig. 2 is a crosssectional View indicated bythe line II II of Fig. 1. Fig. 3 is a horizontal sectional View taken onthe line x5 III III of Fig. 1. Figs. .tand 5 are perspective views ofthe lock detached.

My invention consists of an improvement in devices for preventing nutsfrom loosening by turning, and is designed to embrace zo the sides ofthe nut and to beheld in immovable engagement with the fish-bar or othermember upon which the nut is secured. I have shown it applied to theWell-known rail- `joint, which is one of the chief sources of z 5trouble with loose nuts.

Referring now to the drawings, 2 is the rail, the ends of which areconnected by the usual sh-plates 3 3 and bolts 4. Extending upwardlyfrom the bolt-hole of the fish-plate on 3o one outer side is adepression or groove 5,

which may, however, be made in other directions, if desired, although Iprefer the position indicated for the reason that the groove is thuslocated immediatelyunder the edge of the rail-head and for the furtherreason that the effect of gravity is thus utilized to maintain the lockin position.

The lock consists of a rectangular clasp made of a band or bar ofmetalhaving a mid- 4o dle portion 6 and side portions 7 and 8, so ar-4ranged parallel to each other as to embrace the sides of the nut when'the lock is in position. Either or both of the sides 7 and 8 is madesufficiently long tol project beyond the y corner of' the nut and to bebent around it,

as vclearly shown in Fig. 1. Extending outwardly and downwardly from theback of the Application filed February 9, 1900. Serial No. 4,640. (Nomodel.)

to be an eflieient, simple, and reliable lock to prevent dislodgment ofthe nut. Its removal is easily effected by turning out the end 10 andprying the clasp out of engagement with the groove, when the nut may beremoved.

The lock may be made of forged iron or malleable casting, while thegrooves 5 may vberolled or pressed in the fish-bar originally or may beeasily made by suitable tools on old bars already in position.

The advantage of my invention will be appreciated by those skilled inthe art, as it is very simple, easy to make and use, cheap in cost, andreliable in action, and in actual service has demonstrated itsefficiency for an extended length of time.

.Having described my invention, what I claim is- 1. A nut-lockconsisting of a rectangular clasp, one or both sides of which areadapted to be bent around the corner of the nut, and a lug projectingoutwardly from the back, and with an inwardly-extending face on a planewith the inner edges of the clasp, substantially as set forth.

2. In combination with a fish-plate provided with a retaining-groove, arectangular clasp adapted to embrace the sides of a nut and abackwardly-projecting lug adapted to engage the retaining groove land tobear against the inner face ot' the nut, substantially as set forth.

3. In a nut-lock, the combination of a fishplate or member provided witha bolt-hole, a groove in the face of the plate extending out- Intestimony whereof I ax my signature in presence of two Witnesses.

MILTON BARTLEY.

wardly from the bolt-hole, a clasp formed of a Het metallic bar bent; toconform to the sides of the nut and to be bent around its corner, andprovided With a baekWardly-projeetng lug in engagement with the grooveTitnessesz and held therein by the inner face of the nut, l BENJAMIN W.KREDIN, substantially as set forth. E. WV. ECHOLS.

